What is the definition of sufficient evidence?

How can we make the world a better place, specifically towards discriminated people (lgbtq+ community, people of color, people with disabilities etc.) how can we make them change their view on people they call "different"? how can we get people to love one another despite how they look or who they love or where they are from? 2-3 paragraphs ! (ᵔᴥᵔ)

Each pair of sentences can be combined to create one compound sentence. determine which choice best combines them. refinishing furniture is a creative hobby. not everyone loves to scour garage sales to find old items. going to flea markets can you to notice unique qualities in used items. beauty can be found where you least expect it. specialized equipment can make the refinishing process easier. painting the furniture can be creative with the right tools. some people like refinishing old furniture. others prefer buying new items.

Which function is positive for the entire interval (-3, -2]?